Hello to everyone.
I want to know, how many current can the board of nRF52 DK work with?. My PC have one USB 3.0 input, that provides 900 mA when I connect the board, and one USB 2.0 that provides 500 mA when I connect it.O those cases, when I connect the board to the PC, LED5 begins to blink for a second and then stops. That´s normal.But, if I use a cellphone charger (for the wall), with USB entrance, that provides 5V as output with 1000 mA, to turn on the nRF52 board, LED5 begins to blink and never stops.I´m worried about it, because I don´t want to go bad my nRF52 board.Can I keep feeding the board with 1000 mA or is dangerous? I hope you can help me.
Those USB PSUs are (usually) voltage sources an should be safe to use - unless you bough cheap chinese (or similar) stuff, which has not enough mains isolation. These can kill you in fault cases.
The blinking LED only signals that there is no USB host present. USB chargers do not use USB data protocols.
Thank you, Turbo J.
So, there's no problem if I use 1000 mA to feed the board, right?
As Turbo kindly advised, the fact that it is rated 1000mA is not a problem.
Thank you so much!